<!DOCTYPE html>
<html lang="ch-cn">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/base.css">
</head>
<body>
    <button class="c-button c-button--gooey"> Hover me
        <div class="c-button__blobs">
        <div></div>
        <div></div>
        <div></div>
        </div>
      </button>
      <svg style="display: block; height: 0; width: 0;" version="1.1" xmlns="http://www.w3.org/2000/svg">
        <defs>
          <filter id="goo">
            <feGaussianBlur result="blur" stdDeviation="10" in="SourceGraphic"></feGaussianBlur>
            <feColorMatrix result="goo" values="1 0 0 0 0  0 1 0 0 0  0 0 1 0 0  0 0 0 18 -7" mode="matrix" in="blur"></feColorMatrix>
            <feBlend in2="goo" in="SourceGraphic"></feBlend>
          </filter>
        </defs>
      </svg>
</body>
</html>